tree/tiny rcu: Add debug RCU head objects

[deliverable/linux.git] / lib / Kconfig.debug

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index d85be90d5888cb8df619039fb4282e77c9a120ff..142faa2ec6658b2943ee1a771355eb22d73429d0 100644 (file)
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -307,6 +307,12 @@ config DEBUG_OBJECTS_WORK
          work queue routines to track the life time of work objects and
          validate the work operations.
 
          work queue routines to track the life time of work objects and
          validate the work operations.
 

+config DEBUG_OBJECTS_RCU_HEAD
+       bool "Debug RCU callbacks objects"
+       depends on DEBUG_OBJECTS && PREEMPT
+       help
+         Enable this to turn on debugging of RCU list heads (call_rcu() usage).
+

 config DEBUG_OBJECTS_ENABLE_DEFAULT
        int "debug_objects bootup default value (0-1)"
         range 0 1
 config DEBUG_OBJECTS_ENABLE_DEFAULT
        int "debug_objects bootup default value (0-1)"
         range 0 1


@@ -898,6 +904,18 @@ config LKDTM
        Documentation on how to use the module can be found in
        Documentation/fault-injection/provoke-crashes.txt
 
        Documentation on how to use the module can be found in
        Documentation/fault-injection/provoke-crashes.txt
 

+config CPU_NOTIFIER_ERROR_INJECT
+       tristate "CPU notifier error injection module"
+       depends on HOTPLUG_CPU && DEBUG_KERNEL
+       help
+         This option provides a kernel module that can be used to test
+         the error handling of the cpu notifiers
+
+         To compile this code as a module, choose M here: the module will
+         be called cpu-notifier-error-inject.
+
+         If unsure, say N.
+

 config FAULT_INJECTION
        bool "Fault-injection framework"
        depends on DEBUG_KERNEL
 config FAULT_INJECTION
        bool "Fault-injection framework"
        depends on DEBUG_KERNEL


@@ -1039,10 +1057,10 @@ config DYNAMIC_DEBUG
 
          Usage:
 
 
          Usage:
 

-         Dynamic debugging is controlled via the 'dynamic_debug/ddebug' file,
+         Dynamic debugging is controlled via the 'dynamic_debug/control' file,

          which is contained in the 'debugfs' filesystem. Thus, the debugfs
          filesystem must first be mounted before making use of this feature.
          which is contained in the 'debugfs' filesystem. Thus, the debugfs
          filesystem must first be mounted before making use of this feature.

-         We refer the control file as: <debugfs>/dynamic_debug/ddebug. This
+         We refer the control file as: <debugfs>/dynamic_debug/control. This

          file contains a list of the debug statements that can be enabled. The
          format for each line of the file is:
 
          file contains a list of the debug statements that can be enabled. The
          format for each line of the file is:
 


@@ -1057,7 +1075,7 @@ config DYNAMIC_DEBUG
 
          From a live system:
 
 
          From a live system:
 

-               nullarbor:~ # cat <debugfs>/dynamic_debug/ddebug
+               nullarbor:~ # cat <debugfs>/dynamic_debug/control

                # filename:lineno [module]function flags format
                fs/aio.c:222 [aio]__put_ioctx - "__put_ioctx:\040freeing\040%p\012"
                fs/aio.c:248 [aio]ioctx_alloc - "ENOMEM:\040nr_events\040too\040high\012"
                # filename:lineno [module]function flags format
                fs/aio.c:222 [aio]__put_ioctx - "__put_ioctx:\040freeing\040%p\012"
                fs/aio.c:248 [aio]ioctx_alloc - "ENOMEM:\040nr_events\040too\040high\012"


@@ -1067,23 +1085,23 @@ config DYNAMIC_DEBUG
 
                // enable the message at line 1603 of file svcsock.c
                nullarbor:~ # echo -n 'file svcsock.c line 1603 +p' >
 
                // enable the message at line 1603 of file svcsock.c
                nullarbor:~ # echo -n 'file svcsock.c line 1603 +p' >

-                                               <debugfs>/dynamic_debug/ddebug
+                                               <debugfs>/dynamic_debug/control

 
                // enable all the messages in file svcsock.c
                nullarbor:~ # echo -n 'file svcsock.c +p' >
 
                // enable all the messages in file svcsock.c
                nullarbor:~ # echo -n 'file svcsock.c +p' >

-                                               <debugfs>/dynamic_debug/ddebug
+                                               <debugfs>/dynamic_debug/control

 
                // enable all the messages in the NFS server module
                nullarbor:~ # echo -n 'module nfsd +p' >
 
                // enable all the messages in the NFS server module
                nullarbor:~ # echo -n 'module nfsd +p' >

-                                               <debugfs>/dynamic_debug/ddebug
+                                               <debugfs>/dynamic_debug/control

 
                // enable all 12 messages in the function svc_process()
                nullarbor:~ # echo -n 'func svc_process +p' >
 
                // enable all 12 messages in the function svc_process()
                nullarbor:~ # echo -n 'func svc_process +p' >

-                                               <debugfs>/dynamic_debug/ddebug
+                                               <debugfs>/dynamic_debug/control

 
                // disable all 12 messages in the function svc_process()
                nullarbor:~ # echo -n 'func svc_process -p' >
 
                // disable all 12 messages in the function svc_process()
                nullarbor:~ # echo -n 'func svc_process -p' >

-                                               <debugfs>/dynamic_debug/ddebug
+                                               <debugfs>/dynamic_debug/control

 
          See Documentation/dynamic-debug-howto.txt for additional information.
 
 
          See Documentation/dynamic-debug-howto.txt for additional information.